In this paper, the authors introduce an efficient approach for the secure PKI key generation on the idea of multiple modalities Iris and fingerprint. Contributions include a general approach for trivialities purpose generation, distinguishable iris feature generation and a PKI key generation mechanism. The image processing techniques are used to extract a biometric measurement from the fingerprint and iris. within the proposed technique, GPOF (Generation of PKI key while not Fusion) minutiae points are extracted from the Finger print and key are generated from them.